Electrode patch substrate



The sole FIGURE is a front view of the electrode patch substrate, withthe rear view being a mirror image thereof and the sides being of nosubstantial thickness.

The side are of no substantial thickness, and the corresponding viewsare therefore omitted.

The broken lines included in the FIGURE are for the purpose ofillustrating a portion of the electrode patch substrate that forms nopart of the claimed design.

The ornamental design for an electrode patch substrate, as shown anddescribed.